154afff7fc
Eliminate all bc command dependencies - replace with awk for portability
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PROBLEM:
- bc command not installed on all systems (requires bc package)
- 30 instances across toolkit causing potential failures
- bc is external dependency for floating-point arithmetic
SOLUTION:
- Replaced all bc usage with awk (universally available)
- Pattern: echo "X * Y" | bc → awk "BEGIN {printf \"%.2f\", X * Y}"
- Pattern: (( $(echo "X > Y" | bc -l) )) → awk comparison + bash test
FILES MODIFIED (8 files, 30 bc instances eliminated):
1. lib/threat-intelligence.sh (1 fix)
- Line 310: Load average to integer conversion
2. lib/reference-db.sh (2 fixes)
- Line 554: CPU load percentage calculation
- Line 570: TCP retransmission comparison
3. lib/php-analyzer.sh (5 fixes)
- Line 138: Script duration comparison
- Lines 391-395: OPcache hit rate + wasted memory + cached scripts
- Line 479: OPcache hit rate threshold
4. modules/performance/hardware-health-check.sh (1 fix)
- Line 264: CPU frequency conversion (KHz to GHz)
5. modules/performance/network-bandwidth-analyzer.sh (3 fixes)
- Line 168: Daily bandwidth threshold (50 GiB)
- Line 238: Bytes to MB conversion
- Lines 388-390: TCP retransmission percentage
6. modules/performance/php-optimizer.sh (2 fixes)
- Lines 457, 653: OPcache hit rate comparisons
7. modules/diagnostics/system-health-check.sh (10 fixes)
- Lines 345-350: Load per core + threshold calculations
- Lines 354-358: Load trend detection (3 comparisons)
- Lines 367-406: Load critical/warning/elevated checks
- Lines 828-829: TCP retransmission analysis
- Line 901: Clock offset detection
- Line 1692: Network stats TCP retrans percent
8. tools/toolkit-qa-check.sh (QA improvements)
- Added --exclude="toolkit-qa-check.sh" to prevent self-scanning
- Eliminates false positives from QA script itself
TECHNICAL DETAILS:
- All awk commands use BEGIN block for pure calculation
- printf formatting preserves decimal precision (%.2f, %.1f, %.0f)
- Error handling with 2>/dev/null || echo fallbacks
- Ternary operators for comparisons: (condition ? 1 : 0)
TESTING:
✓ QA scan shows 0 CRITICAL, 0 HIGH, 0 MEDIUM, 0 LOW issues
✓ All 30 bc instances eliminated
✓ No external dependencies beyond standard bash + awk
✓ Toolkit now portable to minimal Linux installations
IMPACT:
+ Eliminates bc package dependency
+ 100% portable (awk included in all Unix/Linux systems)
+ Same accuracy for floating-point calculations
+ Faster execution (awk is typically faster than bc)
+ Better error handling with fallback values
2025-12-03 20:49:46 -05:00
86ed92e9e2
Fix critical bugs found by QA tool: grep -F, integer comparisons, function exports
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CRITICAL FIXES (8 → 0):
- Fix all 8 grep -F with regex anchors bugs
- lib/reference-db.sh:420
- lib/user-manager.sh:195, 254, 258, 317, 583, 590
- modules/website/500-error-tracker.sh:313
- Changed grep -F to grep for proper regex support
HIGH PRIORITY FIXES:
- Add 36 function exports for subshell availability
- lib/system-detect.sh: 10 functions
- lib/common-functions.sh: 26 functions
- Fix 27 integer comparisons with ${var:-0} validation
- lib/common-functions.sh: 7 fixes
- lib/ip-reputation.sh: 3 fixes
- lib/user-manager.sh: 4 fixes
- launcher.sh: 7 fixes
- modules/website/500-error-tracker.sh: 1 fix
- modules/performance/hardware-health-check.sh: 2 fixes
- modules/performance/mysql-query-analyzer.sh: 1 fix
- modules/security/bot-analyzer.sh: 11 fixes
- Change exit to return in library file
- lib/common-functions.sh:246 (require_root function)
DOCUMENTATION:
- Add [DEVELOPMENT_WORKFLOW] section to REFDB_FORMAT.txt
- Document QA script as "third option" for validation
- Add recommended workflow for using QA tool
- Document all 16 checks (11 bug + 5 performance)
IMPACT:
- Before: 41 issues (8 CRITICAL + 13 HIGH + 9 MEDIUM + 11 LOW)
- After: 30 issues (0 CRITICAL + 10 HIGH + 9 MEDIUM + 11 LOW)
- 27% reduction, all CRITICAL bugs eliminated
QA Tool: bash /tmp/toolkit-qa-check.sh /root/server-toolkit
2025-12-03 19:41:59 -05:00
cschantz